haber cambiado

to have changed

→ haber
phrase Very common #1,519
to have changed Perfect infinitive: it refers to a change that was already completed before another moment or verb, often after verbs like deber, poder, or ir a.
SP: Después de tantos años, todo puede haber cambiado.
EN: After so many years, everything may have changed.

Debí haber cambiado contigo, debimos haber cambiado juntos..

I should have changed with you, we should have changed together.

Las cosas podrían haber cambiado.

Things could have changed.

Las cosas van a haber cambiado.

Things will have changed.

— Una cuestión de tiempo (2013)

Deben de haber cambiado un tubo en algún lado.

They must have changed a tube somewhere.